<?php
/**
 * m_form.php$_info
 * Created by Komma Mediadesign.
 * Author: mike
 * Date: 3/27/13
 */
class Form_Field extends Functions
{
    /*
     * Error
     */
    protected $_error;

    /*
     * Information about the field
     */
    protected $_info = array('type'=>'text','classes'=>array('reset_value'));

    /*
     * Construct
     */
    public function __construct($label = null)
    {
        $this->_info['label'] = $label;
        $this->_info['name'] = $this->camelCase($label);
        $this->_info['id'] = $this->_info['name'];



    }

    /*
     * Configure form field
     */
    public function config($key,$value)
    {
        if( ! empty($key) && $value != null)
        {
            if((isset($this->_info[$key]) && is_array($this->_info[$key]) || is_array($value)))
            {
                if(is_array($value) && key($value) != 0)
                {
                    foreach($value as $k => $val)
                    {
                        $this->_info[$key][$k] = $val;
                    }
                }
                if(is_array($value))
                {
                    foreach($value as $k => $val)
                    {
                        $this->_info[$key][] = $val;
                    }
                }
                else
                {
                    $this->_info[$key][] = $value;
                }
            }
            else
            {
                $this->_info[$key] = $value;
            }
        }
    }

    /*
     * Get form configuration
     */
    public function get($key = null)
    {
        if( ! $key == null)
        {
            return $this->_info[$key];
        }
        return $this->_info;
    }

    /*
     * Get form configuration
     */
    public function set($info)
    {
        if( ! empty($info)) $this->_info = $info;
    }

    /*
     * Set value of the field
     */
    public function defaultValue()
    {
        if($value = Session::get(array($this->_info['form_name'].'_data',$this->_info['name'])))
        {
            $this->_info['value'] = $value;
        }
        else{
            $this->_info['value'] = $this->_info['label'];
        }
    }

    /*
     * Validate form field
     */
    public function validate()
    {
        // info['validation'] has [@attributes] as first key.
        $validation = array();
        if(isset($this->_info['validation']))
        {
            foreach($this->_info['validation'] as $info)
            {
                if(gettype($info) == 'object')
                {
                    $validation[] = $info->getName();
                }
            }
        }
        $this->_info['validation'] = $validation;

        if(count($this->_info['validation']) > 0)
        {
            // Field is required, check if value exists (for checkboxes)
            if(in_array('required_isset',$this->_info['validation']))
            {
                if( ! isset($_POST[$this->_info['name']]))
                {
                    $this->_error = 'Vul het veld &ldquo;' . $this->_info['label'] . '&rdquo; in a.u.b. ';
                    return false;
                }
            }

            // Set value to validate
            $input = null;
            if(isset($_POST[$this->_info['name']])) $input = $_POST[$this->_info['name']];

            // Field is required, check if value is not empty)
            if(in_array('required',$this->_info['validation']))
            {
                if(empty($input) || strip_tags($input) == $this->_info['label'])
                {
                    $this->_error = 'Vul het veld &ldquo;' . $this->_info['label'] . '&rdquo; in a.u.b. ';
                    return false;
                }
            }

            // Check if value is a valid e-mail string
            if(in_array('email',$this->_info['validation']))
            {
                if(!$this->checkMail($input))
                {
                    $this->_error = 'U heeft geen geldig e-mail adres ingevuld. (bv. naam@voorbeeld.nl)';
                    return false;
                }
            }

            // Specific validation for each object
            if(in_array('specified',$this->_info['validation']) && isset($this->_info['object']))
            {
                $object = $this->_info['object'];
                $file = DOCUMENT_ROOT . 'lib/form/types/' . $object . '.class.php';
                if(is_file($file))
                {
                    if( ! class_exists($object)) require $file;
                    $TypeObject = new $object;
                    if($TypeObject->validate($input))
                    {
                        return true;
                    }
                    $this->_error = $TypeObject->getError();
                }
                return false;
            }
        }
        return true;
    }

    public function getError()
    {
        return $this->_error;
    }


}